なぜ楕円上の点を2cosθ、sinθとおいてるんですか？

例題 小取大 最小 S MEE *** 稲円+y²=1の第1象限の点Pにおいて接線を引き,x軸,y軸と 交わる点をそれぞれ Q, R とする.線分OR の長さの最小値を求めよ. ま た。このときの点Pの座標を求めよ. 考え方 楕円上の点をP(2cose, sine) とおいて考える. y x) (R P (2cose, sin0 ) -2 0 /2 Q x 2 解答 楕円+y=1① 上の点Pの座標を 2010 2 P(2 cos 0, sine) (0<0<) とおくと,点Pにおける①の 119 接線は, nie) +(97) 200) X)(0 nie)-8800)=fg+x 2x cos 0 +ysin0=1+(nia x² 4 楕円 J² + 62=1 y=0 とおくと, x=- 2 2 上の点 (x1, yi) にお より, Q 1800 cos o Cos' ける接線は、 the X- 1 x=0 とおくと, y=- より, R0. R(0, X1X Viy sin sine ²+2=1 したがって, )(0 nie 0+0200x軸上の点のy座標 4 1 QR2=- 10 + = 4(1+tan²0)+(1+ COS20 sin²0 )+(1+ tan2 軸上の点のx座標 FX 1²aie + =5+4tan²0+ 15 +0000 le tan' 4 tan²0.. tan²0 = 9 1 1 1+ すなわち, QR ≧3 tan²0 sin²0 buie & VS Snie S) + tan200より、 等号が成り立つとき,4tan_1 50-2005 tan²0 相加平均・相乗平均 720$dia=0000 の関係を利用 tang=1 08nies OSAKE QR>0 √2 ****** 1=³V (0$ 802 /2√6 よって, QR の最小値は p(2.6のとき,3 cos o= 3 3 3 3 1 3 2-05 800 € sine= 方 3 3 BALAS +0S #10 NO 8 楕円(+(%)=1上の点P(a,b)における接線とx軸、y軸が作る三角形 25+2√4 tau = 第

なぜtaught で過去形の文になっているのに、that —is になるんでしょうか？

The picture showed us that Ryo was in Italy. (8) その経験は私に英語を学ぶことは必要だと教えてくれました。 The experience (is/ that/ taught / necessary / me / learning English / . ) The experience taught me that learning English is necessary.

英検2級のライティングです、 文法のミスとか減点されるところがあったら教えてください！

ライティング • POINTS は理由を書く際の参考となる観点を示したものです。 ただし,これら ●以下のTOPIC について, あなたの意見とその理由を2つ書きなさい。 no norm 以外の観点から理由を書いてもかまいません。 ●語数の目安は 80 語 ~100語です。 of 4 ●解答は,解答用紙のB面にあるライティング解答欄に書きなさい。 なお,解答 欄の外に書かれたものは採点されません。 解答が TOPIC に示された問いの答えになっていない場合や, TOPIC からずれ douていると判断された場合は,0点と採点されることがあります。 TOPIC の内容 をよく読んでから答えてください。 TOPIC dents now use It is often said that restaurants and supermarkets should try to reduce the amount of food that they throw away. Do you agree with this opinion? POINTS Pris ● Cost Health and safety ●The environment hopes to Paist legeover, dept,000 old ort rot yor of gaiglari ainsansgs ari (TE) agabthod insmiragu wlinia 000, à sharaqu of griglody aborg allid no moga nood ovad bluow rath yonom gnian ye fsemedy gramazonami and to yasm woo gnienis va at to int solaq of noin soqoul ori 10

この答えを教えて欲しいです。🙇‍♀️

Level Passage : 2:30 Lesson 5 Jet Reading 22 ⑤ Questions: 2:00 Compared to dogs and other pet animals, cats often have lots of freedom. Many owners let their pet cats go outside whenever they want to. But where do they go? Does your cat visit your neighbor's house for extra food? How far from home does your cat actually travel? Cat owners have been wondering about such questions for a long time. 5 To find out where cats go and what they do, researchers decided to track them by putting a GPS (Global Positioning System) device around their neck. It is well known that cats are natural hunters. They often chase and catch *wildlife, such as birds and other small animals. It was therefore believed Hoor war301 that cats may go far from their homes to hunt. However, the research showed some surprising facts about cat *behavior. It seems that most cats 10 don't travel very far from their homes. On average, they move around two houses away. Owners were *relieved to hear this result because it confirmed that their cats do not cross major roads. There was another interesting result. One female cat walked more than 1 kilometer from her home. When the owner checked her GPS data, they discovered that the cat had gone to their old house. It showed that cats remember the past longer and more clearly than we think.(219 words) *wildlife 44 *relieve ~を安心させる *behavior Infogt) A Choose the best options. (2 points x2) According to the passage, which of the following statements are true about cats? (Choose two options. The order does not matter.) so svom i da a. They enjoy more freedom than other pet animals. imove sill niw nuo exentabilt o b. A GPS device was put around a cat's tail by researchers. c. They go far from their homes to hunt wildlife. Sanino sasd Juoda su v d. The research proved that most cats cross major roads. of Inboq bow it bean 17 s e. They may remember the past more clearly than we expect. Bewe )( B Fill in each blank with a suitable word. (2 points x3) ******* ******** Many owners let their cats go (¹ ), but no one exactly knew where they went and what ) the cats by using a GPS device. they did. In order to find this out, researchers decided to (² maswid Bai As a result, they learned that most cats didn't travel very far from their homes. One cat, however, walked more than 1 kilometer from its home. It turned out that it had (3 shows that cats have a better memory than people thought. ) its old house. This result sal al commaly to pound How Judw grinidman [catch/ forgotten / visited / outside /track/inside] Time ☆ ~1:45 ~2:00 ~2:15 ~2:30 ~2:45 ~3:00-3:30 Reading Speed X WPM 125 109 97 88 80 73 63 /10 Name Class No. 10 2015

関係詞がわからないです 写真の問題を中心に教えて欲しいです

28 UNIT 5 関係詞を含む構文 PART 3 目標 関係詞の用法を身につけよう! 35 My uncle has two sons, who are doctors. Ⓒ35 私のおじには息子が2人いて、 2人とも医者である。 ② I began to eat dinner at seven, when the phone rang. 7時に夕食を食べ始めたが、そのときに電話が鳴った。 35 Point! 関係代名詞の非制限用法(継続用法) 関係代名詞thatは、非制 限用法では用いない 関係詞の前にコンマを置き 補足説明などをする。 制限用法 My uncle has two sons who are doctors. ※この場合息子が全部で何人かは不明 (おじには医者である2人の息子がいる) 非制限用法 My uncle has two sons, who are doctors. ※この場合息子は2人のみ (おじには2人の息子がいるが、 彼らは医者である) 注意 whyとhowは、非制限用 法では用いない Point! 関係副詞 (when, where) の非制限用法 (継続用法) 非制限用法で使う関係副詞は接続詞的な働きをし、 「そしてその時」 「そしてそこで」 を表す。 36 36 I wear the same kind of watch as Kevin wears. 私はケビンがしているのと同じような腕時計をしている。 ② Jonathan is such a good musician as Sam is. ジョナサンはサムのようなすぐれたミュージシャンだ。 36 Point! 関係代名詞 as the same ~as ... (...と同じような~) ② Point! 関係代名詞 as such as ... (･･･のような〜) 好きなことなら何でもやってみなさい。 ② Whatever happens, I will help you. 何が起ころうともあなたを手助けします。 37 Point! 複合関係代名詞(名詞節を作る) 37 Try whatever you like. 複合関係代名詞には、名詞節を作る用法と, 副詞節を作る用法がある。 「~する人は誰でも・･･」 (名詞節) |whoever whichever 「どちらでも｣ (名詞節) |whatever 「~するものは何でも」 (名詞節) ② Point! 複合関係代名詞(副詞節を作る) 書換 No matter what happens, I will help you. 「誰が~しようとも」 副詞節) 「どちらを~しようとも｣ (副詞節) 「どんなことが~しようとも｣ ( 副詞節) 注意 37 UNIT5 関係詞を含む構文 EXERCISES 35 政府は農民に10万ドルの融資を認めたが､それを彼らは10年で返済 (repay) しなければならない。 〈山梨大) The government granted the farmers a loan of $100,000, ( ) ( ) repay in ten years. ( パトリックとその家族はタイを訪れたが、 そこで彼らは楽しい時を過ごした。 <中部大〉 Patrick and his family visited Thailand, ( ) ( ) wonderful time. ) ( 当学部のウェブサイトをごらんください。 そこで海外留学制度の情報をお読みいただけます。 <明治大〉 Please visit our department's website, ( find / will / information / where / you) about the study abroad programs. 〈中央大〉 そのしゃれたレストランはたくさんの客で満員だったが、そのほとんどが女性客だった。 The fancy restaurant was full of diners, 私が今朝朝食を食べているときに, 故郷にいる父が私に電話をかけてきた。 <東洋大 > I was eating breakfast this morning, sp from my hometown. platokomes 36 あなたに恩恵をもたらしてくれるような友人を選びなさい。 < 松山大 〉 ( ) ( ) ( ) ( ) will benefit you. 2 今日の写真を共有する方法は, 10年前にしていたやり方と同じではない。 〈 近畿大 > The way we share photos today is not (same / was / as/ the / it) ten years ago. これはあなたが思っているような難しい問題ではない。 <東北学院大 > you imagine. 37 誰もがメアリーはとてもわがままだと知っている｡ 彼女は自分がしたいと思うことは何でもできると考えている。 <杏林大〉 Everybody knows that Mary is so selfish. She thinks ( ) she wants to. ( 2 どの方角をご覧いただいてもすばらしい景色が見られます。 ( ) ( ), the view is wonderful. 3 音楽に興味のある者なら誰もが彼の名を知っているだろう。 ( ) ( ) ( ) music would know his name. 〈日本大〉 (専修大)

大問1の(5)の問題なのですが、of all usでは無いのですか？ また、ほかにこのような表現をする時を教えていただけると嬉しいです

学習日 166 Unit 18 [Standard Questions] SECOND STAGE 1 次の英文について、後の()内の語句を文末に加え, 最上級を使った文に書きかえなさい (1) Our team is strong*. (in this town) Our team is the strongest in this town, (2) This garden is large. (in this temple) In this temple This gurden is the largest in this (3) Koji studies hard. (in his class) Koji studies hardest in this class. (4) George plays the piano well. (of the three boys) Itteorge hetter Creeros ! fat playing the plaing of the three box the best to OF the three boys (5) Haruna listened to the teacher carefully of us call) piano Haruna listened to the teacher most carefully of as a 2 次の英文の空所に, in か of のうち適当なほうを入れなさい. (1) (1) Sapporo is the largest city Hokkaido. & M (2) Yuna is the tallest (3) Hana is the most active* n (4) This restaurant is the most popular this area*. (5) I think February is the coldest all the months. 3 次の日本文の意味を表すように,空所に適語を入れなさい. (1) □ (1) 琵琶湖は日本で一番大きい湖です. Lake Biwa is the C ·largest.. Jake D ✓ (2) メグは私たちみんなの中で一番速くキーボードを打ちます。 Meg types the fa fastest (of us all. ✓ (3) この写真はその3枚の中で一番美しい。 This photo is the most beautiful of the three. ✓ (4) アイカはこの学校で the four girls. this class. 4 N Japan. 「キーボードを打つ」が

ここの問題がわからないです！

He wal (26) 初めは、彼女は来る日も来る日も泣いてばかりいた。 Every.. day she cried day after day. Q. (27) その問題は私には簡単に思えた。 The problem to me. (28) 私たちはカレーの匂いにつられてその店に入った。 The smell of curry us (29) 私は昨日彼女とばったり会った。 I meet her yesterday. (30) 彼の主張は無視されるだろう。 His claim will on ears. the restaurant.

解答お願いします 2枚目の画像を参考にします

cal 50 Work It Out Fill in the blanks with correlative conjunctions. 1 The child wants neither cheesecake 2 Benjamin can ice cream. play basketball and in-line skate well. Prague Square or Charles Bridge. 3 We'll go to 4) I like to watch both action movies romances. She has a desktop nor a laptop. B Read the passage and fill in the blanks with correlative conjunctions. she and I like to eat My best friend Janet and I have a lot in common. pasta. We eat a - pizza nor hamburgers. We like to either sing karaoke go to the movies in our leisure time. We always choose comedy or horror movie to see at the movie theater. We really want to go to Central Park and Times Square during our summer vacation. Because we have so much in common, we've decided to become roommates. Check the correct answers. 1 Either my father or my mother ( is/are ) going to the supermarket. 2 Neither the webcam nor the speakers ( is/are ) broken. 3 Neither Sarah nor 1 (want/ wants) to go shopping with them. Both Spanish and German ( are / is) taught in this high school. 5 Either Sam or his friend ( have / has ) eaten the cake. D Combine the sentences based on the hints given. 1 My roommate doesn't have a notebook. / I don't have a notebook. (neither ... nor ... ) 2 Tom Hanks may be the leading actor of the movie. / Tom Cruise may be the leading actor of the movie. (either ... or...) 3 Paul invited me out for dinner tonight. / Peter also invited me out for dinner tonight. (both ... and ...) UNIT 05 WHAT'S ON YOUR PLAYLIST?

1枚目の反応って2枚目の反応にならないのですか？

(3) 濃硫酸に銅片を加え加熱すると気体が発生した。 Cut Cal tle- Jere CutlHasoq t26 ) Hosoq t 2HT t2e-→ 2H,ofS0z CitauCl。

本文の下にあるits は何を指すかの指示語問題をある分だけ教えてください。あとTFを答える問題も

『 Dog in の~に出くわす 昭捨てられ 図 子犬 Part 1 Where can you enjoy washoku outside Japan? oku Aroun 現 cuisine [kwizi:n] widely [wáidli 現 Japanese cuisine is now widely popular all over the 1. In 2013, UNESCO added traditional Japanese world. intangible [intdendgobl] caitural [kaltjoral] heritage [hératidsl sCaiptare apJar] cuisine, or washoku, to its List of Intangible Cultural Heritage. Intangible cultural heritage is not a building or a sculpture. It is a tradition or a custom such as a festival or cooking. Washoku has joined French cuisine, Mediterranean cuisine, and Mexican cuisine on UNESCOS list. More and more overseas restaurants serve Japanese 2 cuisine. The number has increased by three and a halí 3 times in the past ten years. Today, there are more BF than 88,000 in total. You can find them not onlv in Asian countries but also in the USA and Europe Asian [éizon] Europe [júarap L ▲a tempura restaurant in ▲a sushi bar in Seattle A: 12. themは何を指しますか。 3. itsは何を指しますか。 *not only A but also B